# Full health gauge

Pause the game, then hold L1 + R1 (in order) and quickly press Right, Down, Left, Up. If you entered the code correctly, you will hear a sound.
# Full Master Mode gauge

Pause the game, then hold L1 + R1 (in order) and quickly press Left, Down, Right, Up. If you entered the code correctly, you will hear a sound.
# Health drops to 1 point

Pause the game, then hold L2 + R2 (in order) and quickly press Down, Up, Right, Left, Down, Up. If you entered the code correctly, you will hear a sound.
# Master Mode gauge drops to 1 point

Pause the game, then hold L2 + R2 (in order) and quickly press Right, Left, Right, Left, Down(2). If you entered the code correctly, you will hear a sound.
# Enemies shoot faster

Pause the game, then hold L2 + R2 (in order) and quickly press Right, Down, Left, Up. If you entered the code correctly, you will hear a sound.
# Hidden package art

Take the game's cover art out from the case and turn it over to see an alternate version.
# Blocking bullets

While enemies are shooting, you can block the bullets better by tapping R1 or Circle repeatedly until you are ready to make a move on them.
# Defeating Jean

In your first Boss battle with Jean on stage 3, run and hide behind the stagecoach. Jean will run up to it on the other side. He will try to shoot you but cannot; however you can still hit him. Keep swinging your sword and it will go through the stagecoach and hit Jean. Keep this up until he is dead. If done correctly, you should not lose any health.
# Defeating Rando

Use a low stance weapon and keep deflecting his bullets back at him with Circle.
# Hard mode

Successfully complete the first sixteen stages on the normal difficulty setting to unlock the hard difficulty setting.
# Insane mode

Successfully complete the first sixteen stages on the hard difficulty setting to unlock the insane difficulty setting.
# Survival mode

Successfully complete the first sixteen stages on the insane difficulty setting to unlock Survival mode.
# Play as Cow Girl Anne

Successfully complete survival mode two or more times to unlock Cow Girl Anne.
# Play as Way Of The Samurai 1 and 2

Successfully complete all stages (including the extra stages) on the super hard difficulty setting to unlock Way Of The Samurai 1 and 2.
# Hidden bonus characters

Find the wanted posters in the following stages to unlock the corresponding character:

Sweetheart

Normal stage 16 (Wilderness): Look in the dining room, behind the screen.

Urchin

Normal extra stage 5 (Wilderness): Look at the top of the hill.

Ripper

Hard stage 1 (Cactus Gulch): Found above the general store next to the saloon.

Oaf

Hard stage 2 (Saloon): Search down by the stairs.

Eve

Hard stage 3 (Cactus Gulch): Hidden in the back of the small path next to the train station.

Vile

Hard stage 4 (Ghost Town): From your starting position, look behind the road blocking sign in front of you.

Little Baby

Hard stage 5 (Goldberg Residence): Found behind a door.

Bart

Hard stage 6 (Fort): Found in an opening by the entrance to the courtyard.

General

Hard stage 7 (Cactus Gulch): Search inside the small room along the tracks.

Faceless

Hard stage 8 (Saloon): Found over the chandelier.

Joey

Hard stage 9 (Coal Mine): Go past the bridge and look above the dead end to the right.

Nathan

Hard stage 9 (Coal Mine): From the starting location, search the building directly in front, and beyond the slippery ground.

Anne

Hard stage 10 (Ghost Town): Found in mid-air in the cemetery.

Brat

Hard stage 10 (Ghost Town): Search inside the bathroom.

Donna

Hard stage 11 (Cactus Gulch): Get to a position where the train station is behind you. Look on the terrace of the building to the left and diagonal from your location.

Jean

Hard stage 12 (Wilderness): Found in the air next to the bridge.

Faceless (type 2)

Hard stage 13 (Saloon): Look on the pipe next to the stage.

Lanky

Hard stage 14 (Wilderness): Look around the entrance to the stage.

Rando

Hard stage 15 (Fort): Search the back of the right side of the fort.

Goldberg (normal)

Hard stage 16 (Goldberg Residence): Look behind the back stairs inside Goldberg's room.

Ralph

Hard stage 16 (Goldberg Residence): On the first floor, search the pipe on the back left.

Goldberg (battle)

Easy extra stage 1 (Fort): Found diagonally above the statue.

Killer

Hard extra stage 2 (Coal Mine): Above the coal mine entrance.

Claudia

Hard extra stage 4 (Coal Mine): Go past the bridge and enter the room with a crane. It is on the wall to the right.

Harvey

Hard extra stage 4 (Coal Mine): Look behind the bridge.

# Extra stages

Extra stage 6: Successfully complete all the custom rules for stage 6; or complete stages 1 through 15 on the normal difficulty setting at experience level 20 or higher.

Extra stage 9: Successfully complete all the custom rules for stage 9; or complete stages 1 through 15 on the normal difficulty setting at experience level 30 or higher.

Extra stage 10: Successfully complete all the custom rules for stage 10; or complete stages 1 through 15 on the normal difficulty setting at experience level 40 or higher.

Extra stage 13: Successfully complete all the custom rules for stage 13; or complete stages 1 through 15 on the normal difficulty setting at experience level 50 or higher.

Extra stage 16: Successfully complete all the custom rules for stage 16; or complete stages 1 through 15 on the normal difficulty setting at experience level 60 or higher.

# Bonus weapons

Akitsu: Reach experience level 35
Amatsuyu: Reach experience level 10
Daihan Nya: Reach experience level 7
Hadarayuki: Reach experience level 39
Hyakka Ryoran: Reach experience level 43
Hyakki Yako: Reach experience level 27
Makiwari: Reach experience level 3
Metsu Ryuto: Reach experience level 59
Murasame: Reach experience level 80
Nodachi: Reach experience level 5
Scissor61: Reach experience level 64
Shibuki: Reach experience level 13
Sobusho: Reach experience level 75
Trident: Reach experience level 67

# Bonus items

Afro: Reach experience level 10
Angel Wings: Reach experience level 70
Bad Guy Hat: Set a high score on stage 2, normal difficulty
Badguy Boots L: Set a high score on stage 11, normal difficulty
Badguy Boots R: Set a high score on stage 10, normal difficulty
Bandana: Set a high score on stage 5, normal difficulty
Boxing Belt: Set a high score on stage 4, hard difficulty
Boxing Glove L: Set a high score on Stage 14, hard difficulty
Boxing Glove R: Set a high score on Stage 13, hard difficulty
Carnival Mask: Reach experience level 12
Cat Ears: Set a high score on stage 2, hard difficulty
Cat Paw L: Set a high score on stage 7, hard difficulty
Cat Paw R: Set a high score on stage 6, hard difficulty
Cat Tail: Set a high score on stage 12, normal difficulty
Chainsaw: Reach experience level 60
Chimney: Set high score on stage 16, hard difficulty
Coffin: Reach experience level 32
Cowboy Boot R: Set high score on stage 8, normal difficulty
Cowboy Boots L: Set high score on stage 9, normal difficulty
Cowboy Hat: Set high score on stage 1, normal difficulty
Demon Horns: Set high score on stage 1, hard difficulty
Demon Mask: Reach experience level 23
Demon Tail: Set high score on stage 15, hard difficulty
Demon Wings: Set high score on stage 5, hard difficulty
Eyepatch: Reach experience level 40
Flower: Reach experience level 50
Fox Mask: Reach experience level 16
Gas Mask: Reach experience level 83
Good Guy Hat: Set high score on stage 3, normal difficulty
Goodguy Boots L: Set high score on stage 13, normal difficulty
Goodguy Boots R: Set high score on stage 12, normal difficulty
Guitar: Set high score on stage 6, normal difficulty
Halo: Reach experience level 80
Hawk: Reach experience level 36
Headband: Reach experience level 38
Hockey Mask: Reach experience level 53
Hopsy Paw L: Set high score on stage 10, hard difficulty
Hopsy Paw R: Set high score on stage 9, hard difficulty
Knight Armor: Set high score on stage Extra 6, normal difficulty
Knight Leg L: Set high score on stage Extra 10, normal difficulty
Knight Leg R: Set high score on stage Extra 9, normal difficulty
Knight Shoulder L: Set high score on stage Extra 16, normal difficulty
Knight Shoulder R: Set high score on stage Extra 13, normal difficulty
Lasso: Set high score on stage 4, normal difficulty
Locomotive: Set high score on stage 11, hard difficulty
Lute: Reach experience level 21
Modern Weapon: Reach experience level 44
Monkey: Reach experience level 34
Mr. Hopsy: Set high score on stage 3, hard difficulty
Noh Mask: Reach experience level 48
NV Goggles: Reach experience level 99
Parrot: Reach experience level 28
Pirate Cape: Reach experience level 42
Pirate Hat: Reach experience level 41
Samurai Armor: Set high score on stage Extra 6, hard difficulty
Samurai Helm: Set high score on stage 16, normal difficulty
Samurai Leg L: Set high score on stage Extra 10, hard difficulty
Samurai Leg R: Set high score on stage Extra 9, hard difficulty
Samurai Shoulder L: Set high score on stage Extra 16, hard difficulty
Samurai Shoulder R: Set high score on stage Extra 13, hard difficulty
Shades: Reach experience level 46
Sherriff Badge: Set high score on stage 7, normal difficulty
Showy Boots L: Set high score on stage 15, normal difficulty
Showy Boots R: Set high score on stage 14, normal difficulty
Spectacles: Reach experience level 14
Steam Engine: Set high score on stage 8, hard difficulty
Straw Basket: Reach experience level 90
Tengu Mask: Reach experience level 19
Throwing Star: Reach experience level 30
Umbrella: Reach experience level 26